Mining Incidents

JEFFERSON BARRACKS (CS-71)Metal/Nonmetal

Controlled by Riverstone Group
St. Louis, St Louis County, MO · Active
MSHA Mine ID: 2300027
Fatalities
0
Total incidents
62
Years on record
2000–2026
Latest incident
Apr 2026
No fatalities recorded at this mine.

Reportable incidents

62 on file

2026 · 1 incident

Fall from ladders

Employee alleges they were climbing down a ladder and lost balance and fell down last 3 steps on to their right knee.

2025 · 1 incident

Struck by flying object

Employee alleges EE was grinding and sealing some material and some rust went into EE's left eye.

2024 · 2 incidents

Over-exertion (Not Elsewhere Classified)

Employee alleges was climbing down from excavator and sprained left foot.

Struck against a moving object

Employee alleges they were driving a man lift and they hit a rock in the road and they came down hard on their left knee in the lift.

2022 · 1 incident

Struck by flying object

Employee noticed irritation in right eye and associated it with grinding metal the previous day. Waited 1.5 days to notify management at which point EE was sent for medical on 12/15, foreign object removed from eye. Employee was wearing prescription glasses during grinding instead of Company supplied goggles.

2021 · 2 incidents

Struck by falling object

Employee was cleaning up material at the base of the scalping screen due to spillage. Another employee was on top of loose material on top the screen to dislodge (approx 35-50 lb) rock. That rock fell, hit the guard, then dropped down about 4"" onto employee's right shoulder.

Struck by... (Not Elsewhere Classified)

Employee was using a Stihl chainsaw clearing trees. Chainsaw kicked and hit EE's left thigh causing wound/abrasion.

2020 · 1 incident

Over-exertion (Not Elsewhere Classified)

Employee was lifting right leg to climb ladder onto 992K CAT LOADER, EE felt a pull in the right abdomen area. Didn't think much of it, therefore it was not reported that day. That evening while trying to sleep, sharp pain in the lower abdomen/groin area kept EE awake. Reported on 9/23, went to Dr and EE has an Incisional hernia, requiring surgery.

2017 · 3 incidents

Caught in, under or between a moving and a stationary object

Employee was pulling on gate to change product flow in crusher finishing tower, put left hand in inappropriate area causing pinching laceration on left hand, ring/middle finger.

Over-exertion (Not Elsewhere Classified)

Employee was attempting to close a misaligned latch on a utility bed tool box with both hands when ee heard a pop in left shoulder.

Caught in, under or between a moving and a stationary object

Employee was using a magnetic drill when the bit broke, causing the mag drill to spin loose and smashed employee's right thumb. INJURY BECAME REPORTABLE ON 5/30/17 WHEN EMPLOYEE WENT BACK TO DR AND NEW XRAYS SHOW A BREAK - RESTRICTIONS BEGAN ON 5/30/17.

2016 · 2 incidents

Caught in, under or between a moving and a stationary object

Employee was using a walk behind bobcat to clean up spillage under conveyor structure. After filling bucket employee lifted bucket with controls, causing the back end of the machine to rise pinching left hand between the controls and the conveyor structure. Pinching caused laceration and abrasion.

Over-exertion (Not Elsewhere Classified)

Employee has been diagnosed with carpal tunnel in both hands. Employee does a lot with EE's hands, loading blast holes, connecting detonators, shoveling, operating skid loaders and general plant maintenance. Scheduled surgery on 3 28 16. ****THIS REPLACES SUBMISSION # 2243074 FROM 03/18/16****

2015 · 4 incidents

Over-exertion (Not Elsewhere Classified)

Employee started to climb the ladder on his front-end loader when he felt a pain in his left shoulder.

Struck by... (Not Elsewhere Classified)

Employee was holding a level on a piece of 3/4"" rubber belting while co-worker used a box cutter. Box cutter slipped out of belting causing it to strike employee in the top of wrist causing laceration.

Over-exertion (Not Elsewhere Classified)

Employee was attempting to exit a scissor-manlift, grabbed the handrails above with both hands lifting body weight and swinging out of the machine. Employee heard a pop and had pain in the top of his right shoulder.

Over-exertion in lifting objects

Employee lifting 5 gal grease bucket for the rock drill. Lifting with his left arm to place into cabinet on drill and felt pain in his left shoulder.

2014 · 3 incidents

Over-exertion in lifting objects

Employee was shoveling while cleaning up under the conveyor belt when he felt pain in his low back.

Absorption of radiations, caustics, toxic and noxious substances

While pressure washing machine, water splashed back onto face and safety glasses. The following day @ shift close employee reported something in eye from day before. Employee was sent to the eye clinic where they washed his eye out and gave him eye drops. MSHA SITE DOWN 10/24 DUE TO MAINTENANCE said to try again today 10/27/14 for reporting.

Over-exertion (Not Elsewhere Classified)

unloading rocks out of primary housing with a platform hooked to Linkbelt. platform hung up on one end, employee stepped on platform, held the cables and tried to wiggle it free, the platform broke free causing a jerking motion. FIRST WORKDAY WITH RESTRICTIONS 7/07/14

2013 · 2 incidents

Struck by... (Not Elsewhere Classified)

Employee was working on a Needle Scaler and was cutting the needles with a cut off wheel. The cut off wheel grabbed and jerked causing a laceration to the employee's (L) forefinger.

Caught in, under or between (Not Elsewhere Classified)

Employee was helping to move a gate in a chute under construction. Employee was pushing down on the gate handle with his rt hand. When the gate handle moved downward the employee lost his balance, grabbing the corner of the chute with his left hand to catch himself, inadvertently causing his ring and middle finger to become pinched by the moving gate, causing lacerations.

2012 · 1 incident

Over-exertion in lifting objects

EMPLOYEE WAS LIFTING AND ROLLING ONE END OF AN OAK TIMBER OFF OF A LARGE CONCRETE BLOCK WHEN HE FELT A PULLING IN HIS RIGHT UPPER ARM.

2011 · 4 incidents

Over-exertion in wielding or throwing objects

Employee was resetting the cone at the crusher with a sledge hammer when he experienced pain in his right shoulder. NOTE: PER MSHA INSPECTOR A 7000-1 WAS NOT NEEDED AT THE TIME OF HIS FIRST DOCTOR VISIT OF 1/04/12. THE EMPLOYEE HAS SINCE BEEN PUT ON RESTRICTIONS STARTING 04/05/2012.

Struck by... (Not Elsewhere Classified)

Employee was using a hand grinder with a 4"" cutoff wheel to cut an opening on an electrical box when the grinding wheel caught a corner, broke apart, and kicked the grinder back, striking the employee in the left hand, just below the base of his pinky finger causing a laceration.

Fall onto or against objects

Employee was working in the primary feeder hopper. He was standing on built up material in the hopper, clamping a piece of belting up so access to the rotor was open. He turned to climb down and his foot slipped, causing him to fall sideways about 2 ft into the bottom of the feeder trough, impacting his right shoulder.

Over-exertion (Not Elsewhere Classified)

Employee was walking on the grizzly bars inside the feeder hopper to enter the impactor housing to set up wire feed welder on hammers. Employee's foot slipped off top of bars and slipped in between causing top of foot to over extend.

2010 · 1 incident

Struck by... (Not Elsewhere Classified)

Employee was welding and had a steel hopper raised and secured with nylon straps. One of the straps failed causing the hopper to shift. Something hit the employee on his welding hood or shield causing injury.

2009 · 2 incidents

Rubbed or abraded

employee spent approx 3 hrs working on his knees on steel while doing various handwork while dismantling the primary impactor crusher housing working with a sledgehammer.

Fall to the walkway or working surface

employee was checking on unlocked door at accounting office when he fell off the step onto concrete floor.

2008 · 1 incident

Struck by... (Not Elsewhere Classified)

Employee was kneeling on a catwalk and was using a 3/4"" pry bar to scrape build up from the top drum of a gravity take up on the #7 conveyor, while the belt was running. The belt grabbed the bar and pulled it through the drum causing the pry bar to be pulled from his hands causing lacerations from the mushroomed end of the bar.

2007 · 5 incidents

Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS STEPPING OFF A NEWLY INSTALLED WALKWAY AT # 2 CRUSHING PLANT WHEN HE STEPPED WRONG, OVER-EXTENDING HIS RIGHT KNEE BACKWARDS. EMPLOYEE'S KNEE HURT A LITTLE AT THE TIME BUT WAS STIFF AND SORE THE NEXT MORNING.

Contact with hot objects or substances

EMPLOYEE WAS TEST RUNNING A 1710 CUMMINS ENGINE WHEN A FREEZE PLUG BLEW OUT STRIKING HIM ABOVE THE BROW AND SPEWING HOT LIQUID OVER EMPLOYEE'S NECK, HEAD AND ARMS.

Struck by... (Not Elsewhere Classified)

Employee was helping remove a hoist cylinder from a 980G cat loader. He was holding the eye of the push rod guiding the cylinder out. When it cleared, it swung forward carrying him with it, knocking him into a support pipe holding the boom arm up. When he let go of the rod eye, the middle and ring fingers of his right hand were cut below the end knuckles.

Over-exertion (Not Elsewhere Classified)

Employee was coming down the ladder of a 65 ton Euclid haul truck when his right ankle twisted.

Struck against stationary object

Employee was scraping out bucket of front end loader, when his scraper struck some harder, compacted material. This caused his arm to stop short, at which time, he felt a slight twinge in his right elbow. **reported to bussen office 4/30/07**** **1st treatment 4/30/07*****

2006 · 2 incidents

Over-exertion in wielding or throwing objects

EMPLOYING WAS THROWING A ROCK OUT THAT HAD JAMMED IN THE CRUSHER. ****1ST DR VISIT ON 12/07/06****** MSHA REPORT NOT FILED AT THE TIME..DID NOT ANTICIPATE THIS TREATMENT.

Over-exertion in lifting objects

EMPLOYEE WAS CLIMBING LADDER WITH A PROPANE TANK, HE USED HIS KNEE AS A HELPER TO HOIST TANK TO PLATFORM, FELT PAIN IN RIGHT KNEE. *** 1st DOCTOR VISIT 2/08/06***

2005 · 5 incidents

Fall to the walkway or working surface

employee was turning a piece of 1"" plate over to gring off the cutting torch slag when he stepped back on a power cord causing his foot to slip. he lost his lifting momentum causing the weight of the plate to come back at him at which that point he lowered the plate.

Over-exertion (Not Elsewhere Classified)

Employee was using a 8# sledgehammer to drive a bearing race out of the wheel of a euclid haul truck. The hammer handle caught on a wheel stud causing the hammer to deflect and twisted employee's arm. *****It appears that this employee is going to need more treatment than anticipated.

Struck against a moving object

Employee was operating a bobcat at the crusher doing cleanup when his bucket hit something in the dirt causing him to jar in his seat. *****I realized that a form to MSHA had not been submitted. That is the reason for the delay. Any questions, please contact me.

Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS WELDING IMPACT CRUSHER DOOR & KNOCKING OFF SLAG. THAT EVENING HE THOUGHT HE WAS SUFFERING FROM FLASH BURN. HE WENT TO THE EYE CLINIC & HE HAD A PIECE OF FOREIGN OBJECT LODGED IN HIS RT. EYE.

Over-exertion (Not Elsewhere Classified)

EE WAS WALKING TO HAUL TRUCK TO START SHIFT. WALKED INTO A SMALL GULLEY MADE BY RECENT RAINS AND TWISTED KNEE

2004 · 2 incidents

Fall onto or against objects

EMPLOYEE WAS GREASING THE PLANT. HE LEANED BACK ON THE GUARD RAIL & IT BROKE. HE LOST HIS BALANCE & GRABBED AHOLD OF A PIECE OF ANGLE IRON, CUTTING HIS HAND ON A JAGGED EDGE.

Over-exertion in lifting objects

EE WAS WORKING ON WHEEL CALIPERS WITH SLEDGEHAMMER PICKED UP A PRY IRON TO USE AND FELT A PAIN IN HIS RIGHT SHOULDER.

2003 · 6 incidents

Struck against a moving object

EMPLOYEE WAS BEING LOADED WITH SHOT ROCK BY A FRONT END LOADER. THE LOADER OPERATOR DUMPED THE ROCK INTO THE TRUCK HARD CAUSING THE TRUCK TO SHAKE VIOLENTLY.

Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS COMING DOWN THE LADDER OF HIS FRONT END LOADER WHEN HE MISSED THE STEP CAUSING HIM TO HOLD MOST OF HIS WEIGHT WITH HIS ARMS HOLDING ONTO THE HAND RAILS.

Absorption of radiations, caustics, toxic and noxious substances

EE WAS AT THE CRUSHING PLANT PICKING UP SCRAP PIECES OF PLYWOOD. HE PICKED HIS GLOVES UP AND PUT THEM ON, WHEN HE FELT A STINGING AS IF SOMETHING BIT HIM.

Struck against a moving object

EE WAS IN HIS HAUL TRUCK WAITING TO BE LOADED BY PIT LOADER. THE LOADER DUMPED A BUCKET INTO THE BED AND WHEN HE STARTED BACKING UP THE LOADER HIT HIS TRUCK BED WITH HIS BUCKET, CAUSING THE TR UCK TO ROCK BACK AND FORTH.

Fall onto or against objects

EMPLOYEE COMPLETED FUELING HIS HAUL TRUCK. HE CLIMBED UP THE TRUCK TIRE INSTEAD OF THE LADDER. THE TIRE WAS MUDDY CAUSING HIM TO SLIP HITTING HIS KNEE ON THE TIRE.

Struck against a moving object

EE WAS OPERATING FRONT END LOADER ON FROZEN GROUND, CLAIMING THAT EXCESSIVE BOUNCING CAUSED BACK TO ACHE.

2002 · 4 incidents

Struck by powered moving object

EMPLOYEE WAS MAKING ROUNDS CHECKING GATE LOCKS. HE WENT TO GET OUT OF HIS TRUCK THINKING IT WAS IN PARK, INSTEAD IT WAS IN REVERSE. HE WAS KNOCKED TO THE GROUND BY THE DOOR, HITTING HIS HEAD O N THE GROUND, BRUISING HIS RIBS AND HIPS.

Over-exertion in pulling or pushing objects

EMPLOYEE WAS PUSHING A GRIZZLY BAR WITH HIS BODY OFF THE BED OF HIS PICKUP TRUCK, WORKING IT BACK AND FORTH WHEN HE FELT SOMETHING PULL IN HIS UPPER THIGH AND GROIN.

Fall from piled material

EE WAS UNCLOGGING CONE CRUSHER. HE STEPPED BACK ON THE WALK WHICH WAS PILED WITH DEBRIS OUT OF THE CRUSHER WHEN HE MISSTEPPED, FALLING OFF WALK DOWN ONTO SAFETY GUARD OVER THE TOP OF THE PIT L ANDING ON HIS FEET. HE THEN SLID DOWN THE GUARD FALLING TO THE GROUND BELOW APPROX. 4'

Over-exertion in pulling or pushing objects

EE WAS PULLING A 50 LB. BAG OF ANFO FROM PICKUP BED. FELT POPPING IN HIS ARM.

2001 · 3 incidents

Fall from machine

EMPLOYEE WAS EXITING WABCO HAUL TRUCK CAB WHEN HE TRIPPED ON LEDGE. INSTEAD OF FALLING HEAD FIRST, HE JUMPED FROM THE PLATFORM, LANDING ON HIS LEFT HEEL.

Fall onto or against objects

EMPLOYEE SLIPPED IN MUD ON GROUND LEVEL AT THE BASE OF STAIRS FALLING ONTO METAL STEPS.

Over-exertion in wielding or throwing objects

EE HAS BEEN EXPERIENCING PAIN IN BOTH SHOULDERS. EE BELIEVES IT IS FROM USING A SLEDGE HAMMER AS WELL AS THE GRINDER.

2000 · 4 incidents

Struck by... (Not Elsewhere Classified)

EE WAS GOING TO GET TOOLS WHEN HE JUMPED A WATER PUDDLE. THE GENIE MANLIFT BOOM STRUCK HIM IN THE HEAD WHEN HE JUMPED, CAUSING LACERATION ON THE FOREHEAD.

Fall to lower level, (Not Elsewhere Classified)

EMPLOYEE WAS STANDING ON A LARGE ROCK FLAGGING THE FRONTEND LOADER TO BUILD A RAMP FOR THE ROCK DRILL, WHEN THE ROCK HE WAS STANDING ON WAS HIT WITH THE TIRE OF THE MACHINE, CAUSING THE EMPLOY EE TO CATAPULT APPROX. 8' IN THE AIR. HE SUSTAINED A BROKEN COLLAR BONE, BROKEN RIB AND BRUISED LUNG.

Struck against a moving object

EMPLOYEE WAS BACKING UP ON STOCKPILE WITH HIS WABCO HAULTRUCK TO DUMP A LOAD. THE PILE GAVE WAY CAUSING THE TRUCK TO GO OVER BACKWARD APPROX 25-30' DOWN.

Over-exertion in lifting objects

EE WAS LIFTING A CHAIN TO HOOK ONTO FRONT-END LOADER TO PULL HIS HAUL TRUCK OUT OF MUD. FELT PAIN IN ABDOMEN.